CVE-2026-6508

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-07. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Origin Validation Error vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows Accessing Functionality Not Properly Constrained by ACLs.

This issue affects Liderahenk: from 2.0.1 before 2.0.2.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Track)
EG Risk 75/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
13.0%
KEV
Not listed

Published

May 7, 2026

Last Modified

May 7, 2026

References (1)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 176 total refreshes for this CVE.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:22 UTCEG score recompute
  4. 2026-07-22 14:08 UTCEPSS rescore
  5. 2026-07-22 14:08 UTCEPSS rescore
  6. 2026-07-21 15:25 UTCEPSS rescore
  7. 2026-07-21 15:25 UTCEPSS rescore
  8. 2026-07-20 17:08 UTCEPSS rescore
  9. 2026-07-19 14:31 UTCEPSS rescore
  10. 2026-07-19 02:29 UTCEPSS rescore
  11. 2026-07-18 10:04 UTCEPSS rescore
  12. 2026-07-16 17:03 UTCEPSS rescore
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-15 02:00 UTCEPSS rescore
  16. 2026-07-13 06:13 UTCEPSS rescore
  17. 2026-07-13 06:13 UTCEPSS rescore
  18. 2026-07-12 05:46 UTCEPSS rescore
  19. 2026-07-11 08:27 UTCEPSS rescore
  20. 2026-07-11 08:27 UTCEPSS rescore
  21. 2026-07-09 19:10 UTCEPSS rescore
  22. 2026-07-09 19:10 UTCEPSS rescore
  23. 2026-07-08 15:16 UTCEPSS rescore
  24. 2026-07-08 15:16 UTCEPSS rescore
  25. 2026-07-07 13:46 UTCEPSS rescore
Show 75 more
  1. 2026-07-07 13:46 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 02:31 UTCEPSS rescore
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-01 15:07 UTCEPSS rescore
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-29 14:06 UTCEPSS rescore
  13. 2026-06-28 14:07 UTCEPSS rescore
  14. 2026-06-28 09:32 UTCGHSA enrichment
  15. 2026-06-28 04:56 UTCEPSS rescore
  16. 2026-06-27 14:34 UTCGHSA enrichment
  17. 2026-06-27 03:08 UTCEPSS rescore
  18. 2026-06-26 22:16 UTCGHSA enrichment
  19. 2026-06-25 13:50 UTCEPSS rescore
  20. 2026-06-24 14:05 UTCEPSS rescore
  21. 2026-06-23 21:33 UTCEPSS rescore
  22. 2026-06-23 21:33 UTCEPSS rescore
  23. 2026-06-22 14:25 UTCEPSS rescore
  24. 2026-06-22 14:25 UTCEPSS rescore
  25. 2026-06-21 14:56 UTCEPSS rescore
  26. 2026-06-21 14:56 UTCEPSS rescore
  27. 2026-06-21 01:59 UTCEPSS rescore
  28. 2026-06-21 01:59 UTCEPSS rescore
  29. 2026-06-19 19:26 UTCEPSS rescore
  30. 2026-06-19 19:26 UTCEPSS rescore
  31. 2026-06-18 17:52 UTCEPSS rescore
  32. 2026-06-18 17:52 UTCEPSS rescore
  33. 2026-06-17 17:53 UTCEPSS rescore
  34. 2026-06-17 06:07 UTCGHSA enrichment
  35. 2026-06-16 17:53 UTCEPSS rescore
  36. 2026-06-15 17:49 UTCEPSS rescore
  37. 2026-06-15 17:49 UTCEPSS rescore
  38. 2026-06-15 04:15 UTCGHSA enrichment
  39. 2026-06-15 00:13 UTCGHSA enrichment
  40. 2026-06-14 23:18 UTCEPSS rescore
  41. 2026-06-14 19:54 UTCGHSA enrichment
  42. 2026-06-14 15:53 UTCGHSA enrichment
  43. 2026-06-14 11:10 UTCGHSA enrichment
  44. 2026-06-14 07:04 UTCGHSA enrichment
  45. 2026-06-13 23:00 UTCEPSS rescore
  46. 2026-06-13 01:57 UTCGHSA enrichment
  47. 2026-06-12 23:12 UTCEPSS rescore
  48. 2026-06-12 23:12 UTCEPSS rescore
  49. 2026-06-12 21:52 UTCGHSA enrichment
  50. 2026-06-12 09:28 UTCGHSA enrichment
  51. 2026-06-12 05:18 UTCGHSA enrichment
  52. 2026-06-12 01:17 UTCGHSA enrichment
  53. 2026-06-11 21:17 UTCGHSA enrichment
  54. 2026-06-11 17:16 UTCGHSA enrichment
  55. 2026-06-11 14:00 UTCEPSS rescore
  56. 2026-06-11 11:28 UTCGHSA enrichment
  57. 2026-06-11 07:26 UTCGHSA enrichment
  58. 2026-06-11 03:25 UTCGHSA enrichment
  59. 2026-06-10 23:24 UTCGHSA enrichment
  60. 2026-06-10 22:19 UTCEPSS rescore
  61. 2026-06-10 19:24 UTCGHSA enrichment
  62. 2026-06-10 15:23 UTCGHSA enrichment
  63. 2026-06-10 13:22 UTCEPSS rescore
  64. 2026-06-10 11:23 UTCGHSA enrichment
  65. 2026-06-10 07:22 UTCGHSA enrichment
  66. 2026-06-10 02:55 UTCGHSA enrichment
  67. 2026-06-09 22:55 UTCGHSA enrichment
  68. 2026-06-09 18:32 UTCGHSA enrichment
  69. 2026-06-09 14:31 UTCGHSA enrichment
  70. 2026-06-09 10:31 UTCGHSA enrichment
  71. 2026-06-09 06:28 UTCGHSA enrichment
  72. 2026-06-09 02:27 UTCGHSA enrichment
  73. 2026-06-08 22:00 UTCGHSA enrichment
  74. 2026-06-08 14:17 UTCEPSS rescore
  75. 2026-06-08 14:14 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCjackalkarlos/EvilAhenk
    First seen Mar 10, 2026

    CVE-2026-6508 LiderAhenk Merkezi Yönetim Sistemi mimarisinde, uç birimler (agents) arası tüm istemcilerin birbirleri üzerinde 'root' yetkisiyle kod çalıştırılmasına (unauthorized rce & lateral movement) olanak tanıyan kritik güvenlik zafiyeti.

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-6508?
CVE-2026-6508 is a critical vulnerability published on May 7, 2026. Origin Validation Error vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Liderahenk: from 2.0.1 before 2.0.2.
When was CVE-2026-6508 disclosed?
CVE-2026-6508 was first published in the National Vulnerability Database on May 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6508 actively exploited?
CVE-2026-6508 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-6508?
CVE-2026-6508 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-6508?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6508, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-6508

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